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| Steinke, Stephan; Mohtadi, Mahyar; Groeneveld, Jeroen; Lin, Li-chuan; Lowemark, Ludvig; Chen, Min-te; Rendle-buehring, Rebecca. |
| Upper water column dynamics in the southern South China Sea were reconstructed in order to track changes in the activity of the East Asian winter monsoon (EAWM) since the Last Glacial Maximum. We used the difference in the stable oxygen isotopes (Delta delta O-18) and Mg/Ca-based temperatures (Delta T) of surface-dwelling (G. ruber) and thermocline-dwelling (P. obliquiloculata) planktonic foraminifera and the temperature difference between alkenone- and P. obliquiloculata Mg/Ca-based temperatures to estimate the upper ocean thermal gradient at International Marine Past Global Change Study (IMAGES) core MD01-2390. Estimates of the upper ocean thermal gradient were used to reconstruct mixed layer dynamics. We find that our Delta delta O-18 estimates are... |
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| Ano: 2010 |
URL: https://archimer.ifremer.fr/doc/00231/34204/32845.pdf |
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| Setiawan, Riza Yuliratno; Mohtadi, Mahyar; Southon, John; Groeneveld, Jeroen; Steinke, Stephan; Hebbeln, Dierk. |
| The advection of relatively fresh Java Sea water through the Sunda Strait is presently responsible for the low-salinity tongue in the eastern tropical Indian Ocean with salinities as low as 32. The evolution of the hydrologic conditions in the eastern tropical Indian Ocean since the last glacial period, when the Sunda shelf was exposed and any advection via the Sunda Strait was cutoff, and the degree to which these conditions were affected by the Sunda Strait opening are not known. Here we have analyzed two sediment cores (GeoB 10042-1 and GeoB 10043-3) collected from the eastern tropical Indian Ocean off the Sunda Strait that cover the past similar to 40,000years. We investigate the magnitude of terrigenous supply, sea surface temperature (SST), and... |
| Tipo: Text |
Palavras-chave: Indian Ocean; Sunda Strait; Seawater oxygen isotopes; Java Sea; Sea surface temperatures; Terrigenous supply. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00496/60729/65238.pdf |
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